Process for making paper folding boxes or the like



July 17, 1923.

C. BUTTERFIELD PROCESS FOR MAKING PAPER FOLDING BOXES OR THE LIKE Filed March 23. 1922 5 Sheets-Sheet 1 [N lE N TO)? I [010 VI 5 July 17, 1923.

C. BUTTERFIELD PROCESS FOR MAKING PAPER FOLDING BOXES OR THE LIKE Filed March 23 1922 5 Sheets-Sheet 2 INVENTOR ATTORNEY July 17, 1923. 1.461.967

C. BUTTERFIELD PROCESS FOR MAKING PAPER FOLDING BOXES OR THE LIKE Filed March 23, 1922 5 SheetsSheet 3 b ,b a b a" b b a (I b j f8 1 g [9 b n a a" a a b 7 b July 17, 1923. 1,461,967

c. BUTTERFIELD PROCESS FOR MAKING PAPER FOLDING BOXES OR THE LIKE Filed March 23 1922 5' Sheets-Sheet 4 July 17, I923; 1,461,967

c. BUTTERFIELD PROCESS FOR MAKING PAPER I OLDING BOXES OR THE LIKE Filed Marh 23. 1922 s Sheets-Sheet 5 Patented July 17, 1923.

UNITED STATES PATENT OFFICE.

OILE-LE8 BUTTER-m1), OF IIDDLETOWN, OHIO, ASSIGHOB 1'0 WAT] FOLDING BOX COMPANY, 01 IIDDLE'IOWH, OHIO.

PROCESS FOR MAKING PAPER FOLDING 30m OB LIKE.

Application filed March 28, 1922. Serial Re. 546,045.

Toall'whom'itmay coneem:

Be it known that I, CHARLES BU'rrnnrinLn,

a citien of the United States, residing at Middletown, in the county of Butler and 5 State of Ohio, have invented a. new Process for Making Pa er Folding Boxes or the like, of which the 0 lowin is a specification, reference being bad therein to the accompanying drawings.

This invention relates to a new process for making paper folding boxes.

The main ob ect of my lnvention is to provide a new practice adapted to efiect a large output of folding boxes-of variable types 15 and sizes, and in which all required operations for producing the different units of the boxes are automatic,-tlius eliminating hand operations and, accordingly, cheapenin production. p

n the particular form herein illustrated and described, the new process is described in connection with an apparatus adapted to produce paper folding boxes in which various coacting parts are united one with an- 25 other by means of a suitable adhesive, as

glue, cement, paste, etc., the application of the adhesive and uniting of the parts being eifected automatically coincident with the folding operations of the paper blanks from so the separate units of the boxes are e Certain forms of blanks of box makin material are also herein shown and describe but it will be understood that the illustra-' as tions herein shown are merely for the purpose of demonstrating the practice of the invention, as any suitable apparatus can be used, and various modifications can obviously be made in the product in practicing 40 the new pmces thereon, without departing from the underlying princi les of the invention as defined and comp ended in the appended claims.

In the accompan drawings: 45 Fi 1 is a side elevation of the aper folding x machine, illustrating t e general ization thereof;

ig. 2 is a plan view of the machine;

Fig. .3 is a front elevation of the first unit of the box folding mechanism;

Fig; 4 is a side elevation of Fig. 3;

Fig. 5 is a plan view of the second unit of the box folding mechanism;

F ig. 6 is a side elevationof Fig. 5;

Fig. 7 is a view of a detail feature of the first unit or a series of guides for the paper blanks; d

Fig.7" is a view of a detail of the blank rarrier guides;

Fig. 8 is a front elevation of the fourth unit of the box folding mechanism;

Fig. 9 is a plan view of a detail of the paper blank carrier mechanism;

Fig. 10 is a side view of Fig. 9;

Fig. 11 is a detail side elevation of the second unit of the box folding mechanism including the gear drive for the same;

Fig. 12 is a side view of a detail feature of the automatic paper blank-feeding mechanism;

Fig. 13 is a plan view of a detail feature of the box folding mechanism;

Fig. 14 is a front elevation of the adhesive ap lying mechanism ig. 15 is a side elevation of the mechanism illustrated in Fig. 14, including the adhesive supply tank- Fig. 15 is a view illustrating a modification of the adhesive applying mechanism;

Fi 16 is a side elevation of a detail of g the eeding mechanism;

Fig. 17 is a cross sectional view of the machine taken on the line 17-17 of Fig. 1; Fig. 17 is a detail of a gear train of the feeding mechanism;

i 18 and '19 illustrate paper blanks for t e top and bottom of a common type of folding box, ada ted for reduction on the machine herein ustratef;

Figs. 20 to 23 illustrate successive steps of folding the blanks shown in Figs. 18 and 19; Figs. 24 and 25 illustrate paper blanks for the top and bottom of a special type of paper folding box adapted for production on the machine;

Figs. 26 to 31 illustrate successive steps of folding the blanks shown in Figs. 24 and 25.

Figs. top and box, and

Figs. 34 to 36 illustrate the construction of the third type of box.

The complete apparatus for making folding boxes in the practice of my invention, as here shown in a preferred form in Figs. 1 and 2, comprises three units or groups of mechanisms,-the blank feeding'mechanism -A, the box-folding mechanism -13, and the box delivering mechanism C,- the difierent mechanisms being coordinated one with another to operate as a single automatic machine.

The apparatus as a whole is supported on a suitable frame structure comprising opposite parallel frame members -1, secured one to the other by a series of upwardly extended truss frames -2 and under frame -3, the frame structure as a whole being su ported on legs 4.

he blank feeding mechanism -A, as here shown, except as to certain detail features thereof, is of well known construction in this art, and is not described in detail, therefore, nor claimed specifically, cx cept as to the novel details referred to, but is claimed in the broad combinations defining the machine as a whole. As shown, the feeder mechanism is supported on a frame 32 and 33 illustrate blanks for the bottom of a third type of folding -1 and consists of an inclined table -5 upon which the blanks for making the folding boxes are stacked in suitable quantities to meet the requirements of the automatic feeding mechanism.

The novel features of the automatic feeding mechanism, as here shown, consist of a step-by-step pick-up mechanism which acts to deliver the paper blanks singly from table -5 to the carrier belts -6, the latter being of the usual well-known construction. The step-by-step mechanism consists of a ratchet gear drive -7. illustrated in detail in Fig. 12, which is adjustably connected to the gear mechanism of the first unit of the box folding mechanism as at -9 by a pitman -8, and to the pickup rollers -10 by a gear -11,- the pick-up rollers being. as here shown, of the usual type of rubbercovered friction rollers commonly used in feeding mechanisms of this character.

A further novel feature of the feeding mechanism consists of an automatic timing mechanism for delivery of the paper blanks to the folding mechanism,-this feature being illustrated in detail Fig. 16, consisting of a series of automatic stops -12 secured to a transverse shaft -13, and controlled by upwardly extended arms -14 connected to inclined arms -15 which are secured at one end to the shaft of the upper delivery roller -16, and are in engagement at their 0 posite ends with cams -17 secured to t e shafts of the upper rollers of the first foldin unit,thus the action of the cam on roller -16 will be to lift the roller -18, and at the same time to raise the stops -12 into the path of the pa or blank in position thereon to be delivers the purpose of this arrangement being described in connection with the operation of the machine as a whole. As best illustrated in detail Fig. 17, the feeding mechanism is connected to the first unit of the folding mechanism by spur gears in a manner to synchronize the operation of the feeding mechanism, and the folding mechanism.

The box folding mechanism -B comprises a double series of vertically o posite rollers, each series being made up 0 upper rollers 19, 20, 21, 22, 23, 24 and 25, and lower rollers 26, 27, 28, 29, 30, 31 and 32,- each unit of the series comprising two upper and two lower rollers supported respectively on upper shafts -33 and lower shafts -34, which are adjustably supported in bearings -35 extending upwardly from the frames 1, as best illustrated in detail Fig. 11,- the shafts being operatively eonuected to a main drive shaft -36 which is supported on one of the frames -1 in bearing brackets -37 by intermeshing spur gears 38-39 secured to the upper and lower roller shafts 33-34, and bevel gears -40 and -41, secured respectively to lower roller shafts 34 and drive shaft -36,- the drive shaft being connected as, here shown, to any suitable source of power by means of fast and loose pulleys -42 and -43 and a belt -4l,- thus upon the application of power to the machine all the rollers -19 to -25 and -26 to -32 inclusive, will be operated simultaneously at equal speeds.

A box blank carrier -D extends longitudinally between frames -1, in a horizontal plane intermediate the upper and lower b'ox folding rollers, the full length of unit -B of the machine, and consists of horizontally and vertically opposite upper and lower parallel frames -45 and -46 spaced one from the other as best illustrated in detail Figs. 9 and 10 "of the drawings; a series of upper and lower transverse guide rollers -47 and -48 supported in frames -45 -46 respectively,-the upper rollers, except the one at the extreme left, as viewed in Figs. 1 and2, being yieldably supported by any suitable means, as spring pressure bearings -49; opposite traveling belts -50 and -51 operable between frames -45 and -46 and over rollers -47 and -48,-the frames acting as guides for the belts, and upper tension rollers -47 acting to keep the belts in yieldable contact one with the other in their intermedlate travel between the rollers; and belt driver rollers -52 and -53 for the u per and lower belts, respectively, secure to bearing brackets -35, idler rollers 58 and -59 supportedin pivot arms 60 and 61 secured to frames -45 and -46, being employed, as here shown, to keep the upper and lower belts taut,- operative movement being transmitted to belt driver rollers 52 and ---53, respectively by means of upper and lower gear trains -38 --62 -63 and 39 64 and 65. Between each'set of upper and lower rollers 19 25 and -26 32 and secured to transverse rods 66 and 67, respectively, are upper and lower guides 68 and --69, the ides being arranged parallel with, in the orizontal plane of, and spaced vertically one from the other substantially as the carrier frames -45 and 46,- the ides acting to support the opposite edges 0 the pa er blanks as the same are engaged and move throu h the machine by the carrier belts 50 an 51. The first set of upper guides-+68 at the feed end of the machine are flared outwardly, as illustrated at 68 in detail Fig. 7 for a purpose which will presently be described in connection with the operation of the machine.

The first set of folding rollers -'-.19 26 are shown in detail in Fi '3 and 4, the upr rollers 19 having 0 earance spaces 19 ormed therein to provide for the first folding operation of the paper blanks as the same pass between the rol ers, and the lower rollers 26 having diagonally arranged flanges 26 secared to the peripheries thereof which act in conjunction with the diagonal edge -19 of roller 19 to grip the paper blanks, as the same are delivered one byone by the feeding mechanism --A, and to effect the first folding operation at one end of the blank as the same pass between the rollers.

The second set of folding rollers -2027 are similar to the first set of rollers and perform a similar operation, but in the inverse order, at the opposite end of the blank.

Between the second and third sets of roll- I ers; as best shown in detail 13, are opposite mechanisms each comprising a horizontally extended arm -70 supported in brackets 71 secured to a transversely supported rod --72 and operatively connected to cams -73 arranged on the outer faces of rollers --27-by means of intermediate gears --74 and segment levers --75 which are also pivoted in brackets 71 and having their opposite ends en ged with the cams and acting, as actuate thereby, to rotate arm 70 through the arc of a circle,--the function of the arm being presently described relative to the operatlon of the machine. a

In the third set of rollers, the lower roll ers 28 have symmetrical, or unbroken peripheral surfaces,

the upper rollers --21.

tween the flan es, as best shown in detail Fig. 14, and a apted to apply to certain 00- actlng surfaces of the paper blanks, as will presently be described, an adhesive substance, as glue, paste, or cement, supplied to the pads -21" from a tank 76 by means of a supply roller -77 adapted to be artially immersed in the adhesive materia in the tank, and a distributing roller 7 8 adapted to spread the adhesive on the pads -2l",- thus to cause portions of the blank to firmly adhere one to another as the same are subsequently brou ht under pressure in a further step of the 0 ding operation.

In the fourth set of rollers, as best shown in detail Fig. 8, the lower rollers 29 have peripheral edge flanges ---29, and the upper rollers --22 have the greater ortions of their peripheral surfaces bevele inwardly as at 22,-the outer edges 22" being arranged to extend over and coact with the inner edges of flanges 29 to efiect a further step in the folding of the paper as it passes therebetween.

In the fifth set of rollers, both the upper rollers -23 and lower rollers 30 have unbroken peripheral surfaces which coact one with the other to complete the folding operation initiated by rollers 22 -29, the action upon the fold between the rollers being with sufiicient pressure to cause the surfaces supplied with adhesive to firmly adhere to correspondin surfaces with which the same are brought into contact by action of pressure rollers 23 --30.

The sixth setof rollers 24 31 is similar in construction and operation to the fourth set and erform a similar folding operation upon t e paper blank.

The seventh set of rollers 25 32 is 106 similar to the fifth set and effects a similar operation on the paper blanks as the same pass therebetween to the delivery mechanism C.

The timin of the mechanism of the fold- 1 ing units 0 the machine can readily be a apted for folding pa er of variable widths by disconnecting vel gear 41 from bevel gear 40 of the second unit of the folding rollers --20 and -27, and ro- 1 tating the rollers in the required direction to provide for an earlier or later pick-up of the paper blank by the second folding unit, accordingly, as e case may be, for

the adhesive pads are also adjustable peripherally on rollers -21, and all the rollers -19 -25 and -26 32 inclusive, and

guides 68 and 69 are adjustable laterally in both directions to adapt the same to aper blanks of variable size. Also it will be obvious to those experienced in this art,

that foldings of variable character can be having opposite peripheral flanges -21, performed on the paper blanks by modify pads -21", being arranged on the rollers being details of the general arrangement with- 180 r or shorter blanks: For this purpose,

out departing from the underlying princi les of the invention.

he delivery mechanism C may be of any suitable construction. As here shown, this unit of the apparatus consists of a well known type of mechanism, comprising a frame 1 supported on the frames 1 and having upwardly extended stops 79. Horizontally opposite rollers 80 and a roller 81 in a lower horizontal plane are supported in frame --1", and are traversed by carrier belts 82, 83, and 84, belts 82 bein connected to the lower roller 53 of t e carrier mechanism D, belts -83 traversin the first roller 80 and roller 81, an: belts 84 traversing rollers 80. As shown in Fig. 1, the inner edge of the stacked folded boxes overhangs the inclined travel of belts 83 between roller 81 and the first roller 80,- thus causing the boxes as delivered from the folding mechanism to be delivered beneath the stack and permitting the boxes to be handled in quantities as removed from the machine.

A belt shifter rod 84 is mounted on truss frames 2 and extended the full length of the folding unit of the machine,- thus afiording convenient control of the machine for the attendant operator.

Three types of paper folding boxes adapted for production in the practice of my invention are illustrated in the drawings,a common type of box being illustrated in Figs. 18 to23 and special types of boxes in Figs. 24 to 31, and Figs. 32 to 36 respectively,these blanks serving merel to illustrate the adaptability of the principle of my invention to the production of folding boxes of variable forms.

The paper blanks illustrated in Figs. 18 and 19 are, respectively. for the top and bottom of the box, the blanks being scored and slotted for folding. The folding o rations on the blanks for the tops an the blanks for the bottoms are substantially identical, except that on one blank the folds are made at opposite ends of the blank. and on the other blank at opposite sides of the blank, this being effected by introducing the blanks in one case, for the top of the box, endwise, and the blanks for the bot-- tom of the box sidewise into the folding mechanism-the opposite foldings of the top and bottom blanks being for the purpose of effecting symmetrical construction of the sides and ends of the complete box as assembled.

The folding operations on blanks shown in Fig. 18, are illustrated in Figs. 20 to 23,- the successive operations being as follows: The blanks are stacked on table 5 of the automatic feeding mechanism, as illustrated in Fig. 1, in suitable quantities to effect proper delivery of the blanks, one at a time,

to the folding mechanism. As the blanks are moved sidewise on carrier belts 6, they are stopped and aligned b stops --12, roller 16 being then in raise position. Upon lowering of the roller into feeding relation with lower roller 18, the blank will be advanced with its forward edge in a position to be engaged between the upper and lower rollers 19 and 26, respectively, of the .first unit of the folding mechanism,--the movement of the blank relative to the movement of the rollers being so timed that the diagonal flanges 26 on lower roller 26 will cooperate with diagonal edges 19 of upper roller 19 in a manner to effect folding of portions 4/ on lines a." of the blank substantiallyat right angles to the face of the blank,-the ends of the blank having previously been slotted on lines b'; the folds a. being further acted upon as the blanks pass from the first to the second rollers by the curved portions 68 to flatten the folds over the face of the blanks as indicated in Fig. 20. A corresponding right-angle fold of portions a." is made at the opposite end of the blank as the same passes between the second unit of rollers ---20 and 27-, the folds being in the inverse order, as indicated in Fig. 20. As the blanks pass from the second to the third unit of rollers, the inverse folds a, are acted upon by arms to flatten the folds to the face of the blanks as indicated in Fig. 21. The square surfaces only of folds a', as indicated by score lines, are supplied with adhesive as the blanks pass be tween the rollers of the third unit. Portions 1)" are turned up at right-angles to the face of the blanks, as indicated in Fig. 22 as the blanks pass between rollers 21 and 28 fourth unit,--this action on the paper being effected, as illustrated in Fig. 8, between the peripheral flanges of the lower rollers and the outer faces of the up per rollers. The final fold of the blanks, as illustrated in Fig. 23, is made as the blanks pass between rollers 22 and 29 of the fifth nnit,-this final action being made with suflicient pressure to cause the adhesive surfaces of portions a to be firmly joined to the corresponding opposite surfaces of pertions 6''.

The sixth and seventh sets of rollers, as here shown are not required for producing boxes of the type above described,these additional units being here shown to illus trate the practice of my invention in the production of the type of folding box illustrated in Figs. 24 to 30. For boxes not requiring the extra folding rollers, the same can be removed from the machine, or can be shifted laterally out of the path of the paper blanks as the same are moved through the machine on the carrier belts,--thus there will be no interference with the normal operation of the machine whether or not the foldin units are in operation.

The fol ing operations of the type of box illustrated in Figs. 24 to 31 are similar to those illustrated and described relative to Figs. 18 to 23, but are somewhat more complex, a compound fold being made on opposite edges of each blank. In this form, also, opposite side and end foldings are made of the blanks for the tops and the blanks for the bottoms, to effect symmetrical construction and uniform strength of the boxes as asembled one unit with the other. Detail description of the folding operation, as aplied to one blank, however, will also suilice or the other, as the operations on both are the same-the only difference bein that one blank passes endwise and the ot er blank sidewise through the machine.

The blanks for boxes of this character oonsist,-as here shown in Fig. 24 and 25, of integral units, out, slotted and scored for folding. The form of blank shown in Fig. 24 pass through the folding mechanism sidewise,- the portions 0 at the forward end of the blank being turned-up on lines c' at right-angles to the face of the blank by the action of the first set of rollers, and flattened to the face of the blank, as illustrated in Fig. 26 by pressure exerted thereon by guides 68; the second set of rollers and arms 70 acting cooperatively to make a similar fold of the corresponding portions 0 at the op osite end of the blank, as illustrated in ig. 27; adhesive being applied to the entire surfaces of the portions d and d' as the blanks pass the third set of rollers; the fourth set of rollers acting to turn-up portions e at both ends at right-angles to the face of the blank, as illustrated in Fig. 28,-. the portions -e being pressed down and joined to the adhesive surface of portions d, as indicated in Fig. 29, by the fifth set of rollers,-portime d and e being then turned-up at right-angles, as indicated in Fig. 30, as the blanks are acted upon b the sixth set of rollers,--the final fold being made, as indi cated in Fig. 31, by the action of the seventh set of rollers-it being observed that portions d' have adheslve applied thereto, and that adhesive junctures will accordingly be. made in the final fold of the paper with 'the corresponding opposite portions c.

From the seventh unit of folding rollers the finished box units pass to the delivery mechanism C and are then manually removed from the machine. I

A third type of box adapted for production in the practice of my invention is illustrated in. F1 32 to 36. In this form the paper blanl for the top and bottom of the box are also arranged, preferably for opposite foldings, asillustrated in Figs. 32 and 33. The successive foldings of the opsite blanks being substantially the same, a escription of one will serve for both. The first and second steps of folding are illustrated in Fig. 3,-these operatlons formed by the first and second units of folding rollers and their cooperating mechanisms-guides 68 and arms 70in the manner described in connection with the boxes illustrated in Figs. 18,-23, and 24 31. The adhesive is applied to the blanks on portions --f following the foldings illustrated in Fig. 34,the final fold of the blank for the bottom of the box bein illustrated in Fig. 35, and of the blank or the top of the box in Fig. 36.

t will be observed that all the units for the different types of boxes are delivered from the machine with all jun'ctures made,

and folded in complete knock-down form {eady for handling and shipping in quantity ots.

Reference is here made to certain detail features and refinements of construction, not heretofore mentioned herein. Between the fourth and fifth'sets of rollers 22 29 and 23 30-additional guides 68" are arranged to engage the right angle folds of the paper blanks, as illustrated in Figs. 22, 28 and 30, and correspondin right-angle folds roceeding the final fol lngs illustrated in *igs. and 36, and deflect the folds downwardly sufiiciently to present the blanks properly to the next following rollers for final foldings. The guides 68 being angularly arranged rods, varied as to angularity andspacing one from another to meet the requirements of the size of the blanks.

A further detail feature of the ides 68 is illustrated in detail Fig. 7", t is modification consisting of an arrangement for adjusting a section 68 of the guides longitudinally to adapt the same to paper blanks of variable sizes and variable foldings as the same are presented to the third set of rollers to receive an application of adhesive therefrom. The action of guides -6S would follow, by way of illustration, the right angle folds represented in Fig. 20 and corresponding folds on other of the blanks following the action thereon by arms 70,thus the folds as effected by arms 70 are brought under central of guides 68 before the paper blanks are engaged by the adhesive supplyin rollers.

A furt er detail feature of the adhesive mechanism is illustrated in detail Fig. -15", consisting of a slot 21 arranged in the adhesive pad 21,the pad here shown being of the ty e required in making the third form of folding box illustrated. The purpose of slot 21 is to prevent adhesivebemg applied to the aper blanks on lines where the corner fol occur,thus serving to avoid breaking of the adhesive surfaces and to eflect a better corner construction.

Ill

From the foregoing detailed description, the principles and the varied practice of my invention will readily be understood by those experienced in this art. It will be seen that the invention will be effective for producing paper folding boxes of various of the best construction, at low cost of time and labor, and without material waste of stock, and that the box units as made are folded in knock-down form ready for handlin and shipping in quantity lots without further operations thereon.

Having described my invention, I claim:

1. The herein described process of making paper folding boxes, consisting in prearing blanks of uniform size,in feeding the lanks progressively to a box making apparatus, in causing the blanks to be moved without pause through said apparatus, in effecting successively folding o the front and rear edges of each blank, and subseguently thereto in effecting simultaneously olding of the opposite side edges of each blank, as the same are advanced through said apparatus, in causing adhesive tures to be made between folded rtions of each blank, and in causing the b anks to be delivered singly from said apparatus in knocked-down form.

2. The herein describedprocess of making paper foldi boxes, consisting in reparing blanks o uniform size, in fee ing the blanks progressively toabox making apparatus, in causing the blanks to be moved without pause through said apparatus, in effecting simultaneously folding of the opite corners of the front end of each lank, and thereafter to efiect simultaneously folding of the opposite corners of the rear end of each blank, and in a still later operation to effect folding of the opposite side edges of each blank, as the same are advanced through said apparatus, in

causing adhesive junctures to be made between folded portions of each blank, and in causing the blanks to be delivered singly from said apparatus in knocked-down form.

3. The herein described process of making paper folding boxes, consisting. in reparin blanks of uniform size, in fee ing the b anks progressively to a box making apparatus, in causing the blanks to be moved without pause throu hsaid apparatus, in effecting succesive y folding of the front and rear edges of each blank,-and in efl'ecting simultaneously in a subsequent operation compound foldings of the opposite side edges of each blank, as the same are advanced through said apparatus, in causing adhesive junctures to be made between folded portions of each blank, and in causin the blanks to be delivered singly from sai apparatus in knocked-down form.

' 4. The herein described process of making paper folding boxes, consisting in prejuncparin blanks of uniform size, in feeding the b anks progressively to a box making apparatus, in causing the blanks to be moved without pause through said apparatus, in effecting a series of single and compound knock-down foldings on said blanks, and in forming adhesive junctures between folded portions of each blank.

5. The herein described process of making paper foldin boxes, consisting in reparin blanks o vuniform size, in feeding the banks progressively to a box making apparatus, in causing the blanks to be moved without pause throu h said apparatus, in causing a single fold to be made on the front and rear edges of each blank, and a double fold to be made on the opposite side edges of each blank, to effect multiple strength of material along the sides of the box as folded, and in forming adhesive 'ilmcfrures between folded portions of each 6. The herein described ,0 'making paper foldin boxes, consisting" u reparing blanks o uniform size, in feeding the blanks progressively to a box making apparatus, in causing the blanks to be moved without pause through said apparatus, in causing a single fold to be made on the front and rear edges of each blank and a compound fold on the op. osite side edges and 'at the corners of eac blank to effect multiple strength of material alon said sides and corners of the box as folde and in forming adhesive junctures between folded portions of each blank.

7. The herein described process for making paper folding boxes, consisting in preparin paper blanks each adapted to be olde to form a unit of a box, in sup 1 ing the same in suitable quantities to a box making apparatus to effect automatic feeding of the blanks thereto whereby to cause the blanks to pass through said apparatus one by one without pause, in causing predetermined foldings on the ends and sides of each blank, in causing adhesive junctures to be made between folded portions thereof, and in causing delivery of the blanks in knock-down form from said up aratus in ls)uilliia-ble quantities for handling the same in 8. The herein described process for making paper folding boxes, consisting inpreparing blanks for the tops and bottoms of the boxes, in causing foldings to be made on opposite sides of a blank for the top of a box, and corresponding foldings on opposite ends of a blank for the bottom of a box, in effecting adhesive junctures between folded ortions of each blank, in assembl' said top and bottom one with another w ereby to efi ect a closed box having side and end construction of equal strength of material.

9. The herein described process for mak- Ill ing paper folding boxes, consisting in" preparing blanks for the tops and bottoms of the boxes, in causing compound foldings to be made on opposite sides of a blank for the to of a box, and corresponding compound f0 dings to be made on the opposite ends of a blank for the bottom of a box, in efiecting adhesive junctures between folded portions of each blank, in assembling said top and bottom one with another whereby to 10 In" testimony whereof, I afiix my signa- 15 ture.

CHARLES BUTTERFIELD.

- DISCLAIMER 1,461 967.-C'harls Buttevjield, Middletown, Ohio. Pnocnes 1'03 Maxine PAPER l owme Boxne on THE LIKE. Patent dated July 17, 1923. Disclaimer filed March 2, 1931, by the assignee, Tlw Interstate Folding B02: Company. Hereby enteis this diselaimer: We disclaim the methods set Iorth in claims 1 and 7 excepting when the folding of the front and rear ed es results in the ends of said front edges bein folded rear wardly upon di onal f0 d lines, and the ends of the rear ed e bem fol e'd iorwal dly upon diagonal in d lines, all of said diagonally folded ends eing olded toposltions arallel with and overlying the main body of the Blank, and wherein the sides of the lanks are folded inwardly to positions parallel with and overl g the mam hody of the blank, and caused to adhere to the diagonally folded en s, all of sexism folds being accomplished while the blank is in motion traveling in a single direction with its initial forward egfie in advance.

{Oficial Gazette arch 24, 1.931.] 

